Through its annual special show "Hidden Treasures", Art Cologne reminds visitors of artists who have had a major influence on contemporary art and the younger generation of artists, but whose works are hardly to be seen in the current art market or are being sold at prices below their real value. The "Hidden Treasures" of Art Cologne 2008 are the works of Norbert Kricke (Galerie Strelow, Düsseldorf/ Galerie Wahlandt, Stuttgart), Ulrike Rosenbach (Galerie March, Stuttgart), Fritz Winter (Galerie Utermann, Dortmund) and Karl Bohrmann (manus presse, Stuttgart). In this video Carl Friedrich Schröer meets Klaus Gerrit Friese and asks him: Why is Karl Bohrmann a "hidden treasure".